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Central Unit

TS-820

The TS-820 is a Central Unit of the Infrared Conference System that allows easy installation and flexible layout. By connecting TS-905/907 IR Transmitter/Receiver, TS-820 can control the Chairman and Delegate Units via wireless infrared signal. It features the installation confirmation function that allows the connection status of IR Transmitter/Receiver and Chairman/Delegate Units to be verified. The TS-820 is also equipped with FBS (Feedback Suppression), enabling effective control of acoustic feedback. The system can be controlled by PC (*1). With the use of an optional rack mounting bracket, it can be mounted in an EIA Standard equipment rack (4 unit size).(*1) Relevant control software is supplied on a custom-made basis.

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Specification
Power Source 100 - 240 V AC, 50/60 Hz (use of the supplied AC adapter)
Power Consumption 72 W
Current Consumption Max. 3 A DC (when 24 V DC is supplied from the accessory AC adapter)
Carrier Frequency Reception: Audio channel 1: 7.35 MHz
Audio channel 2: 8.10 MHz
Audio channel 3: 8.55 MHz
Audio channel 4: 9.15 MHz
Control channel: 6.45 MHz
Transmission: Audio channel: 1.95 MHz
Input MIC: -60 dB (*2) , 600 Ω, unbalanced, φ6.3 mm phone jack (2P)
AUX: -20 dB (*2) , 10 kΩ, unbalanced, φ6.3 mm phone jack (2P)
Output LINE: -10 dB (*2), 10 kΩ, unbalanced, φ6.3 mm phone jack (2P)
REC: -10 dB (*2), 10 kΩ, unbalanced, RCA pin jack
HEADPHONES: φ3.5 mm mini jack (3P:monaural)"
Equalizer Input/Output Input: -20 dB (*2), 10 kΩ, unbalanced, RCA pin jack
Output: -20 dB (*2), 10 kΩ, unbalanced, RCA pin jack
Number of ConnectableChairman/Delegate Units 64 units
Number of Connectable Infrared Transmitter/Receiver Units Up to 4 units (with the use of distributor, up to 16 units connectable
when they are all TS-905, and up to 12 units when they are all TS-907, or TS-905 and TS-907 are used in combination)
Infrared Transmitter/Receiver I/O Terminal BNC jacks
External Control Connection Terminal D-sub connector (9P, male)/USB-B selectable
LED Indicator Audio signal receiving indicators 1 - 4 CH, Data signal receiving indicator, External control priority indicator, External control communication indicator, Battery indicator (flashes when a Chairman/Delegate unit's battery nears complete discharge), Short-circuit indicator
Function Switch Number of open microphones setting switch: 1/2/3/4
Mic-off setting switch: TIME OUT ON/OFF
Speech priority selector switch:
FIRST (First-in-first-out priority)
LATEST (Last-in-first-out priority)
FIRST:FIXED NEXT:LATEST (Priority fixed for the first unit, and last-in-first-out priority for all other subsequent units.)
FBS switch: AUTO/OFF/EXT
Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity 90 %RH or less (no condensation)
Finish Panel: Surface-treated steel plate, black, 30 % gloss, paint
Weight 2.7 kg (5.95 lb)
Accessory AC adapter (Cord length: 1.8 m (5.91 ft) DC cord, and 2 m (6.56 ft) detachable AC cord)(*3) …1
Option Rack mounting bracket: MB-TS920
(*2) 0 dB = 1 V
(*3) Not supplied with the TS-820(-CN). For the usable power supply cord and AC adapter, contact your nearest TOA dealer.
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